一 概述
- 点击设备列表连接设备
- 设备连接情况说明
- 设备连接成功后扫描Service服务
- Service服务获取之后获取CBCharacteristic特征值
二 点击设备列表连接设备
2.1 设置UITableView delegate
2.2 实现Cell点击方法didSelectRowAtIndexPath
-(void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
//NSLog(@"1111111-----%ld",indexPath.row);
CBPeripheral *peripheral=self.peripherals[indexPath.row];
self.cbPeripheral = peripheral;
NSLog(@"开始连接设备");
[self.centralManager connectPeripheral:peripheral options:nil];
}
三 设备连接情况说明
self.centralManager connectPeripheral连接设备后，有三种情况回调：连接失败，连接断开，连接成功
3.1 连接失败didFailToConnectPeripheral
//1-连接失败
/**
@param central 中心管理者
@param peripheral 连接失败的设备
@param error 错误信息
*/
-(void)centralManager:(CBCentralManager *)central didFailToConnectPeripheral:(CBPeripheral *)peripheral error:(NSError *)error
{
NSLog(@"连接失败--%@",error);
}
3.2 连接断开didDisconnectPeripheral
//2-断开连接
/**
@param central 中心管理者
@param peripheral 连接断开的设备
@param error 错误信息
*/
-(void)centralManager:(CBCentralManager *)central didDisconnectPeripheral:(CBPeripheral *)peripheral error:(NSError *)error
{
NSLog(@"连接断开--%@",error);
}
3.3 连接成功didConnectPeripheral
/**
@param central 中心管理者
@param peripheral 连接成功的设备
*/
//3-间接成功
-(void)centralManager:(CBCentralManager *)central didConnectPeripheral:(CBPeripheral *)peripheral
{
NSLog(@"连接成功-%@",peripheral);
}
3.4 设备连接示例
| 连接失败 | 连接成功 |
|---|---|
 |  |
四 设备连接成功后扫描Service服务
4.1 在上步3.3连接成功进行服务扫描，并添加CBPeripheralDelegate代理
-(void)centralManager:(CBCentralManager *)central didConnectPeripheral:(CBPeripheral *)peripheral
{
NSLog(@"连接成功-%@",peripheral);
//设置设备的代理
peripheral.delegate=self;
[peripheral discoverServices:nil];
}
4.2 扫描发现服务回调
/**
扫描到服务
@param peripheral 服务对应的设备
@param error 扫描错误信息
*/
-(void)peripheral:(CBPeripheral *)peripheral didDiscoverServices:(NSError *)error
{
//遍历所有的服务
for(CBService *service in peripheral.services)
{
NSLog(@"服务:%@",service.UUID.UUIDString);
//获取对应的服务-根据服务区扫描特征值
[peripheral discoverCharacteristics:nil forService:service];
}
}
4.3 服务信息打印
2022-04-12 22:05:49.493678+0800 CoreBlueTooth[43804:2898149] 开始连接设备
2022-04-12 22:05:50.013514+0800 CoreBlueTooth[43804:2898149] 连接成功-<CBPeripheral: 0x282904000, identifier = 0B652640-8B85-3575-52CF-1A4A7B747BD2, name = zxc, mtu = 23, state = connected>
2022-04-12 22:05:50.402412+0800 CoreBlueTooth[43804:2898149] 服务:D0611E78-BBB4-4591-A5F8-487910AE4366
2022-04-12 22:05:50.402674+0800 CoreBlueTooth[43804:2898149] 服务:9FA480E0-4967-4542-9390-D343DC5D04AE
2022-04-12 22:05:50.402817+0800 CoreBlueTooth[43804:2898149] 服务:180A
五 Service服务获取之后获取CBCharacteristic特征值
5.1 在4.2服务便利时扫描CBCharacterister特征值
-(void)peripheral:(CBPeripheral *)peripheral didDiscoverServices:(NSError *)error
{
//遍历所有的服务
for(CBService *service in peripheral.services)
{
NSLog(@"服务:%@",service.UUID.UUIDString);
//获取对应的服务-根据服务区扫描特征值
[peripheral discoverCharacteristics:nil forService:service];
}
}
4.2 遍历所有的特征值
/**
扫描到对应的特征
@param peripheral 设备
@param service 特征对应的服务
@param error 错误信息
*/
-(void)peripheral:(CBPeripheral *)peripheral didDiscoverCharacteristicsForService:(CBService *)service error:(NSError *)error
{
//遍历所有的特征值
for(CBCharacteristic *characteristic in service.characteristics)
{
NSLog(@"特征值:%@",characteristic.UUID.UUIDString);
}
}
4.3 CBCharacterister特征值打印
2022-04-12 22:08:34.016638+0800 CoreBlueTooth[43822:2899692] 开始连接设备
2022-04-12 22:08:34.476154+0800 CoreBlueTooth[43822:2899692] 连接成功-<CBPeripheral: 0x280f7cd20, identifier = 0B652640-8B85-3575-52CF-1A4A7B747BD2, name = zxc, mtu = 23, state = connected>
2022-04-12 22:08:34.863536+0800 CoreBlueTooth[43822:2899692] 服务:D0611E78-BBB4-4591-A5F8-487910AE4366
2022-04-12 22:08:34.864019+0800 CoreBlueTooth[43822:2899692] 服务:9FA480E0-4967-4542-9390-D343DC5D04AE
2022-04-12 22:08:34.864378+0800 CoreBlueTooth[43822:2899692] 服务:180A
2022-04-12 22:08:34.983210+0800 CoreBlueTooth[43822:2899692] 特征值:8667556C-9A37-4C91-84ED-54EE27D90049
2022-04-12 22:08:35.103962+0800 CoreBlueTooth[43822:2899692] 特征值:AF0BADB1-5B99-43CD-917A-A77BC549E3CC
2022-04-12 22:08:35.162979+0800 CoreBlueTooth[43822:2899692] 特征值:2A29
2022-04-12 22:08:35.163207+0800 CoreBlueTooth[43822:2899692] 特征值:2A24
说明：扫描到特征值就可以读写数据了
